CVE-2026-23062

{"id": "CVE-2026-23062", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2026-02-04T17:16:16.883", "references": [{"url": "https://git.kernel.org/stable/c/193922a23d7294085a47d7719fdb7d66ad0a236f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/25150715e0b049b99df664daf05dab12f41c3e13", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/eb5ff1025c92117d5d1cc728bcfa294abe484da1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/eba49c1dee9c5e514ca18e52c545bba524e8a045", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro\n\nThe GET_INSTANCE_ID macro that caused a kernel panic when accessing sysfs\nattributes:\n\n1. Off-by-one error: The loop condition used '<=' instead of '<',\n causing access beyond array bounds. Since array indices are 0-based\n and go from 0 to instances_count-1, the loop should use '<'.\n\n2. Missing NULL check: The code dereferenced attr_name_kobj->name\n without checking if attr_name_kobj was NULL, causing a null pointer\n dereference in min_length_show() and other attribute show functions.\n\nThe panic occurred when fwupd tried to read BIOS configuration attributes:\n\n Oops: general protection fault [#1] SMP KASAN NOPTI\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg]\n\nAdd a NULL check for attr_name_kobj before dereferencing and corrects\nthe loop boundary to match the pattern used elsewhere in the driver."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nplatform/x86: hp-bioscfg: Correcci\u00f3n de p\u00e1nico del kernel en la macro GET_INSTANCE_ID\n\nLa macro GET_INSTANCE_ID que caus\u00f3 un p\u00e1nico del kernel al acceder a los atributos de sysfs:\n\n1. Error de uno: La condici\u00f3n del bucle usaba '&lt;=' en lugar de '&lt;', causando acceso m\u00e1s all\u00e1 de los l\u00edmites del array. Dado que los \u00edndices del array est\u00e1n basados en 0 y van de 0 a instances_count-1, el bucle deber\u00eda usar '&lt;'.\n\n2. Falta de comprobaci\u00f3n de NULL: El c\u00f3digo desreferenci\u00f3 attr_name_kobj-&gt;name sin comprobar si attr_name_kobj era NULL, causando una desreferencia de puntero nulo en min_length_show() y otras funciones de visualizaci\u00f3n de atributos.\n\nEl p\u00e1nico ocurri\u00f3 cuando fwupd intent\u00f3 leer atributos de configuraci\u00f3n del BIOS:\n\n Oops: general protection fault [#1] SMP KASAN NOPTI\n KASAN: null-ptr-deref en el rango [0x0000000000000000-0x0000000000000007]\n RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg]\n\nA\u00f1ade una comprobaci\u00f3n de NULL para attr_name_kobj antes de desreferenciar y corrige el l\u00edmite del bucle para que coincida con el patr\u00f3n usado en otras partes del controlador."}], "lastModified": "2026-03-13T21:28:23.150", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5BC7DC6F-F752-49B5-82B2-A8F4BF9C3EAC", "versionEndExcluding": "6.6.122", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52F38E19-0FDD-4992-9D6D-D4169D689598", "versionEndExcluding": "6.12.68", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E65C6E79-7EBE-4C77-93F0-818CF5B38F4E", "versionEndExcluding": "6.18.8", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}